Mohareb R.M.; Louca N.A.; Elmegeed G.A.; Hana H.Y.
(2009)
Tryptophan methyl ester 2 reacts with ethyl cyanoacetate to form acetonitrilocarbonyltryptophan methylester 3. The latter reacts with cyanomethylene reagents, hydrazines, cyanomethylenes and sulfur to form the corresponding ...